/****************************************************************************
 * Copyright (C) 2009-2010 SciTouch LLC
 * 
 * This file is part of Indigo toolkit.
 * 
 * This file may be distributed and/or modified under the terms of the
 * GNU General Public License version 3 as published by the Free Software
 * Foundation and appearing in the file LICENSE.GPL included in the
 * packaging of this file.
 * 
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 ***************************************************************************/

#ifndef __rsmiles_loader__
#define __rsmiles_loader__

#include "base_cpp/exception.h"
#include "reaction/reaction.h"

class Scanner;
class Molecule;
struct ReactionHighlighting;

class RSmilesLoader
{
public:
   DEF_ERROR("reaction SMILES loader");

   RSmilesLoader (Scanner &scanner);

   void loadReaction (Reaction &reaction, bool query);

   ReactionHighlighting *highlighting;

protected:
   struct _Atom
   {
      int mol_idx;
      int atom_idx;
   };

   int _selectGroup (int& idx, int rcnt, int ccnt, int pcnt) const;
   int _selectGroupByPair (int &lead_idx, int& idx, int rcnt, int ccnt, int pcnt) const;

   Scanner &_scanner;

private:
   RSmilesLoader (const RSmilesLoader &); // no implicit copy
};

#endif
